.header{width: 100%;margin: 0 auto;background: #FFF }
.logo{width: 1200px;height:118px; margin: 0 auto;}
/*二级导航*/
.nav{width: 100%;background: #02a6cb;height: 51px;}
    .nav ul {list-style-type:none;width: 1200px;margin: 0 auto;}
    .nav ul  a{display:block;float: left; width: 172px; height:51px;line-height: 34px; font-weight: bold;font-size: 16px;color:#FFF;text-align:center;}
    .nav ul  a span{display: block;margin-top: -15px; font-size: 12px;color: #FFF;}
    .nav ul a:hover {color: #FFF;background-color: #008dad;background-image: url(../imgs/hot.png);background-repeat:no-repeat;background-position: 28px center }
    .aon{color: #FFF;background-color: #008dad;background-image: url(../imgs/hot.png);background-repeat:no-repeat;background-position: 28px center }

.nav_er{width:171px;position:absolute;top:169px;background: #02a6cb;z-index:9999;overflow: hidden;display: none}
    .nav_er a{display:block;float: left; width: 171px; height:51px;line-height: 34px; font-weight: bold;font-size: 16px;color:#FFF;text-align:center;}
    .nav_er a span{display: block;margin-top: -15px; font-size: 12px;color: #FFF;}


.nav_er >a:nth-child(1){display: none}